Electric meter.



No. 664,948. Patented Jan. I, l9'0l.

' C. D. HASKINS. ELECTRIC METER.

(Application am; July 29, 1899.) (No Model.)

M M l'l' Inventor I @Awmd I Car lllHaskins 4W *wflZZU/ZQIM Jq b133- gate these devices mechanically by an electrocharge.

'teringdevice which will register the intake the battery by preventing excessive charge charging or discharging. Th is device consists other member of which reverses when the bat-- YUNITED. STATES OARYTJ D. HASKINS, OF NEWTON, M

PATENT -OFFICE.

ASSAOl-IUSETTS, ASSIGNOR g'ro THE GENERAL ELECTRIC COMPANY, OF NEW YORK.

ELECTRIC METER.

srncmrca'rro'n forming part of Letters 1 'hpplioation filed J ly 29, 1899.

To all whom iii-may concern:

Be it known that I, CARYL D. HASKINS, a citizen of the United States, residing at Newton, county of -Middlesex, State of Massachusetts, havein'vented cert'ain new and useful Improvements in Electric Meters, (Case No. 1,100,) of which the following is a specification. v

In the operation of storage batteries-it is desirable to provide some indicator or regisand output of energy. Such a device is serviceable not only for indicating during a pro tracted period of service the amount of energy put through the battery and the'extent of use to which it has been put, but is of value also for indicating the condition of charge in the battery during a single run and showing how much further energy may be safely drawn from it, thereby conserving the life of or discharge. 1 provide ameter for accomplishing these results.

y In carrying out my invention I provide a device responsive to change of current direction for cutting in or out either of-two regis-' tel-ing devices, accordingly as the battery is of a magnetically-controlled clutch, one member of which is of constant polarity and the tery begins to discharge. I preferably opermotor, wh may he throwu' by the circuitchanger i I on out of operative relation to the severa dials.

' Myinyntion therefore comprises astoragebattery meter provided with two registering devices controlled by a magnetically-operated clutch, one member of which is of continuous polarity and the other member of which may be reversed. when the battery begins to dis- It embodies also other features, the novelty of which will be hereinafter more fully set: forth. v

Other more specific features will hereinafter be specifically indicated in the claims.

In the drawing which embodies my improvements I have exemplified as the type of meter, so far as the motive mechanism is conmm; n. 664,948, datedil'anuary 1, 1901. Serial No. 726,45. (lilo model.)

cerned, the well-known Thomson recordingwattmeter. .'It is not, however, essential to my invention that any specific type of operating mechanism for the meter be employed, as will be hereinafter more evident.

The movable or rotary portion of the meter is provided with a device adapted to engage either of two registering-trainsl 2 and may be shifted into operative relation to either by an electromagnetic device controlled by reversal of the current. As specifically shown, a movable "armature 3, adapted to slide or move in guides on the top of the frame supporting the meter parts, shifts the armature-' shaft 4 so as to bring the worm 5 into gear.

with one or the'other of the dial-wheel trains. The armature is polarized by a shunt-circuit from two or more cells of the storage battery and plays in a magnetic field controlled by the coil 5, connected inseries relation to the battery. Thus upon reversal of the batterycurrent on beginning to discharge the polarity of the field-magnet, which is in series with the cells of the battery, reverses and the position of the armature is shifted, thereby shifting the clutch from the train of wheelwork last eiigaged to the other train. The motive mechanism of ,the meter in the organization shown comprises a shunt-circuit in fixed relation to the'ch'arging-mains 6 6, which may be traced as folloWsz:proceedingfrom the .main 6 through-the storage attery in'series,

through the series coil 5 o the clutch-comtrolling device,'through the series coils 8 8 of the meter-motor, and back by the conductor 7 to the opposite charging-main 6.

The shunt-circuit of the motive mechanism] begins the on rrent th rough the coil 5 reverses,

thereby reversing the sign of its'poles and a? i fting the armature 3, which is controlled by.

an eter-frame and has astem extending through an opening in the same, which has a socket at its tip for receiving the end of the armature-shaft 4, but a small play is necessary to shift the worm from clutching relation to either wheel-train. No special provision as to the mounting of the armature is therefore necessarynexcept that-it should be so arranged as to be capable of turning with relation to the stem of the armature 3 and should move with it when the latter is shifted to the right and carry with it the stem 4, which carries the Worm, thus throwing into gear with the armature the dial 2. The indication on the several dials will thus show at any time the amount or" charge and discharge of the battery, or if adjusted at the start of a run will at the finish of said run indicate the amount of current put into the battery and the amount of energy still available therein.

It will be seen that the essential feature is the-relay organization 3 and 5, by which one or the other metering device is put into action, and that the only prerequisite so far as the latter devices are concerned is that they shall be capable in any llltllllGl' BlGCiii'OiDG- chanical, electrochemical, electrotherma l, or

other\\-'ise--of operating the dial-registers.

Nhat I claim as new, and, desire to secure by Letters Patent of the United States, is-- 1. A meter comprising two registers, a meter-m otor responsive to the current to be measured, a clntch'to couple the motor to either register, and a polarized controlling device for the clutch having one member of contin-.

nous polarity and the other member in circuit with the storage battery the energy of which is to be measured by the meter.

2. A storage-battery meter, comprising two registers, a meter-motor responsive to the on rrent to be meas'ured, a clutch to couple the motor to either'register, and a; polarized controllingdevice for the clutch,having one member contin nously polarized by a'shnnt from tromagnetic device responsive to change of direction of the battery-current to engage the motor with either register and disengage .it from the other.

5. A storage-battery meter comprising two registers, a metermotor including on one of its inem hers a coil in series with the battery, a magnetically-operated clutch, one of the operating members being of constant p0- larity, and the other polarized by a coil in series with the battery-circuit, said clutch being adapted to couple the motor to either register. l

6. A storage-battery meter comprising two registers, a metersmotor governed bythe battery-circuit, a worm on the movable member thereof, and a magneticallyoperated clutch having one operating. member of constant polarity, and the other magnetized by a coil in series with the battery to shift the worm into engagement with either register.

In witness whereof I have hereunto set my hand this 27th day of July, 1899.

GARYL D. HASKINS.

Witnesses:

BENJAMIN B.-I-IULL, MA L E. J ACOBSON. 

